If anyone can find it in their hearts to get/save these PDFs, that person can email them to me at claire dot roden at gmail dot com.
THANK YOU SO MUCH.
Vintzileos, Anthony M et al, The impact of prenatal care in the United States on preterm births in the presence and absence of antenatal high-risk conditions, American Journal of Obstetrics and Gynecology, Volume 187, Issue 5, November 2002, Pages 1254-1257.
Maupin Jr, R, et al, Characteristics of women who deliver with no prenatal care, Journal of Maternal-Fetal and Neonatal Medicine, Volume 16, Number 1, July 2004, pages 45-50.
Elam-Evans, LD, et al, Trends in the percentage of women who received no prenatal care in the United States, 1980-1992: contributions of the demographic and risk effects, Obstetrics & Gynecology 1996;87:575-580.
That last one would be especially awesome, even if it is kind of old data. That's the article that everyone seems to be citing in all the other articles I've managed to find.
PS sorry for the spam and totally non-haverford-college related post.
EDIT: I've got all of the articles, thanks so much for your help!